Waffle sandwich



FIG. 1 is a top-perspective view of a waffle sandwich, showing my new design;

FIG. 2 is a bottom-perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is a right side view thereof.

The broken lines in FIGS. 1, 2, and 5-8 illustrate portions of the waffle sandwich that form no part of the claimed design. 

CLAIM The ornamental design for a waffle sandwich, as shown and described. 